MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Sleep
Sleep: The body's rest cycle. Sleep is triggered by a complex group of hormones that are active in the main, and that respond to cues from the body itself and the environment. About 80 percent of sleep is dreamless, and is known as…
Read the definitionRandom terms
Show more- Isotonic solution A solution that has the same salt concentration as the normal cells of the body and the blood. As opposed to…
- Cox-1 inhibitor An agent that inhibits the action of the enzyme cox-1 (cyclooxygenase-1). The common anti-inflammatory drugs…
- Syndrome, Martin-Bell Better known as the fragile X syndrome, the most common heritable form of mental retardation. Fragile X…
- Asclepius One of the earliest Greek gods to specialize in healing. He was known to the Romans as Aesculapius. Healers…
- Blood sugar Blood glucose. See also: High blood sugar; Low blood sugar
- Autoimmune hemolytic anemia A condition in which the immune system attacks the red blood cells, resulting in fewer of these…
- Appendiceal perforation Rupture of appendix
- Lithotomy Surgical removal of a stone, especially a kidney or bladder stone. From the Greek roots litho-, stone + tome…
- Danders See: Dander
- Encephalitis, arboviral See: Arboviral encephalitis
- Tick bite A bite from a bloodsucking, parasitic insect that punctures the skin with a sharp beak. The tic burrows into…
- Breastfeeding practices The practices to be followed in breastfeeding a baby. Human milk is the preferred feeding for all infants…